2021012372 has 12 divisors (see below), whose sum is σ = 3632360340. Its totient is φ = 983195136.

The previous prime is 2021012351. The next prime is 2021012381. The reversal of 2021012372 is 2732101202.

It can be written as a sum of positive squares in 2 ways, for example, as 980691856 + 1040320516 = 31316^2 + 32254^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6827597 + ... + 6827892.

It is an arithmetic number, because the mean of its divisors is an integer number (302696695).

Almost surely, 2^2021012372 is an apocalyptic number.

It is an amenable number.

2021012372 is a deficient number, since it is larger than the sum of its proper divisors (1611347968).

2021012372 is a wasteful number, since it uses less digits than its factorization.

2021012372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13655530 (or 13655528 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2021012372 is about 44955.6711884051. The cubic root of 2021012372 is about 1264.3180088670.

Adding to 2021012372 its reverse (2732101202), we get a palindrome (4753113574).

The spelling of 2021012372 in words is "two billion, twenty-one million, twelve thousand, three hundred seventy-two".